Let ViEEncoder express resolution requests as Sinkwants

webrtc/test/fake_encoder.cc

 /*
  *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 186 matching lines @@
   CodecSpecificInfo specifics;
   memset(&specifics, 0, sizeof(specifics));
   specifics.codecType = kVideoCodecH264;
   return callback_->OnEncodedImage(encoded_image, &specifics, &fragmentation);
 }
 
 DelayedEncoder::DelayedEncoder(Clock* clock, int delay_ms)
     : test::FakeEncoder(clock),
       delay_ms_(delay_ms) {}
 
+void DelayedEncoder::SetDelay(int delay_ms) {
+  rtc::CritScope lock(&lock_);
+  delay_ms_ = delay_ms;
+}
+
 int32_t DelayedEncoder::Encode(const VideoFrame& input_image,
                                const CodecSpecificInfo* codec_specific_info,
                                const std::vector<FrameType>* frame_types) {
-  SleepMs(delay_ms_);
+  int delay_ms = 0;
+  {
+    rtc::CritScope lock(&lock_);
+    delay_ms = delay_ms_;
+  }
+  SleepMs(delay_ms);
   return FakeEncoder::Encode(input_image, codec_specific_info, frame_types);
 }
 }  // namespace test
 }  // namespace webrtc